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2. OWNER INFORMATION

ABOUT YOUR CENTRAL
FURNACE SYSTEM

NORDYNE has been involved in the design of products for the
manufactured home industry since the first manufactured
home or trailer was built.

NORDYNE originated the sealed combustion system, which
separates the furnace combustion system from the living
area of the home, now a standard for the manufactured home
industry.

NORDYNE engineers developed the first central heating
system and the first central air conditioner for manufactured
homes.

NORDYNE is dedicated to bringing to its customers the finest
heating and cooling comfort possible. NORDYNE constantly
seeks to further refine its products to continuously provide
exceptional comfort.

Follow the instructions in this booklet carefully and this
appliance will provide many years of superior performance.

If you wish to cool your home automatically with a central air
conditioning system investigate the excellent NORDYNE
cooling systems available from your heating and cooling
contractor. These systems are designed to work best with
your NORDYNE furnace and have been carefully engineered
to deliver optimum performance when mated with NORDYNE
manufactured home furnaces.

NORDYNE also offers water heaters, fireplaces and ventilating
systems specifically designed for manufactured housing
applications. Check with your manufactured home retailer,
your heating and cooling contractor or your distributor for
information. Write directly to the factory (PO Box 46911, St.
Louis, MO 63146) if you are not able to locate a source for
NORDYNE manufactured housing products in your area.

3. MANUFACTURER WARRANTY,

OWNER’S RESPONSIBILITIES

It is the sole responsibility of the homeowner to make certain
the gas furnace has been correctly set up and converted to
the proper fuel (L.P. gas or Natural gas) and adjusted to
operate properly. All gas furnaces are manufactured for
Natural gas and must be field converted when using L.P. gas.

A warranty certificate with full details is included with these
instructions. However, NORDYNE will not be responsible for
any costs found necessary to correct problems due to
improper setup, improper installation, furnace adjustments,
improper operating procedure on the part of the user, etc.

Some specific examples of service calls which cannot be
included in warranty payments are:

1. Converting the furnace to use another type of gas.
2. Repairing duct work in the home found to be faulty.
3. Correcting wiring problems in the electrical circuit supplying

the furnace.

4. Resetting circuit breakers, blown fuses or other switches.
5. Correcting problems due to improper gas supply pressure

to the furnace.

6. Providing instructional training on how to light and operate

the furnace.

7. Furnace problems caused by installation of an air

conditioner, heat pump or other air comfort devices.

8. Adding a Roof Jack extension because of unusual wind

and/or snow conditions.

9. Revising installation of the furnace flue assembly (Roof

Jack).

10. Adjusting or calibrating of thermostat.
11. Any construction debris which falls into flue system.

Carefully review these responsibilities with your manufactured
housing dealer, service company or gas supplier so there will
be no misunderstanding at a later time.

4. INSTALLATION STANDARDS

Installer shall be familiar with and comply with all codes and
regulations applicable to the installation of these heating
appliances and related equipment. In lieu of local codes, the
installation shall be in accordance with the current provisions
of one or more of the following standards.

a. Federal Manufactured Home Constructions & Safety

Standard (H.U.D. Title 24, Part 3280.707[a][2])

b. American National Standard (ANSI-119.2/NFPA-

501C) for all recreational vehicle installations.

c. American National Standard (ANSI-Z223.1/NFPA-54)

and/or CAN/CGA B149 for all gas-fired furnace models.

d. American National Standard (ANSI-Z95.1/NFPA-31)

and/or CSA B139 for all oil-fired furnace models.

e. American National Standard (ANSI-C1/NFPA-70) and/

or CSA 22.1 Canadian Electric Code Part 1 for all
electrical field wiring.

f.

Units have been investigated under standards UL
307A & B, ANZI 21.47a — CAN/2.3a - 1995, and CSA
B140.10.

CAUTION:

Never attempt to alter or modify this furnace or
any of its components.

Never attempt to repair damaged or inoperable
components. Such action could cause unsafe
operation, explosion, fire and/or asphyxiation.

If a malfunction has occurred, or if you feel that
the furnace is not operating as it should, contact
a qualified service agency or gas utility for
assistance.

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Summary of Contents for M1GB 056

Page 1: ...fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING Iftheinformationinthismanualisnotfollowedexactly afireorexplosionmayresu...

Page 2: ...E GUIDE 18 18 MAINTENANCE 22 19 OPTIONAL ACCESSORIES 23 20 WIRING DIAGRAMS 24 26 21 EQUIVALENT ORIFICE SIZES AT HIGH ALTITUDES 27 Table 1 Model Identification Door Color W White G Gray Cabinet Dimensi...

Page 3: ...nstallation Blower Assemblies A C Capacity Blower Wheel Motor Hp Ton 903412 10 x 8 1 3 2 2 3 903413 11 x 8 1 2 2 2 3 4 903414 10 x 8 3 4 2 2 3 4 5 Part No Blower Motor Assembly Furnace Input Output Or...

Page 4: ...ion furnace adjustments improper operating procedure on the part of the user etc Some specific examples of service calls which cannot be included in warranty payments are 1 Converting the furnace to u...

Page 5: ...followingconditionstohave acceptablereturnairsystemsfor closet installed forced air heating appliances a Regardless of the location the return air opening into the closet shall not be less than specif...

Page 6: ...ertiduct program to determine proper duct size for A C 8 AIR DISTRIBUTION SYSTEMS For proper air distribution the supply duct system must be designed so that the static pressure measured external to t...

Page 7: ...2 ROOF SLOPE 2 SLANT DECK 12 1 2 ROOF JACK WITH 2 FLASHING 12 SLANT 1 2 S S AW T 20 32 2 AW ALL WEATHER FLASHING PITCH 12 RISE 0 FLAT 2 2 5 12 4 4 12 MIN ADJ LENGTH F S FLAT FLASHING SLANT FLASHING TY...

Page 8: ...flooropening SeeFigure13 b Cut ceiling and roof holes as follows Ceiling Hole 8 3 4 222 mm diameter Roof Hole 9 3 8 238 mm diameter c DO NOT ALLOW DEBRIS TO FALL INTO THE FURNACE THIS COULD CAUSE UNSA...

Page 9: ...8 CUT DUCT OPENING a Place duct connector through the floor opening with bottom tabs resting on top of the supply air duct b Center duct connector and push back against rear edge of floor opening c Ma...

Page 10: ...r opening c Slide onto mounting plate Bottom rear slots on furnace should engage with mounting plate tabs d Secure front with one 1 fastener at each corner See Figure 19 or 20 NOTE Additional fastener...

Page 11: ...ion door Gas or Oil To furnace wall thermostat MANUFACTURED HOME SITE a Transit mode weather cap to be removed and upper Roof Jack crown installed See Figure 24 b Place upper Roof Jack crown on to the...

Page 12: ...ircuit 2 wire is required for furnace only 5 wire for heating and optional cooling systems Once the furnace is installed check the thermostat anticipator against the nominal setting of 0 4 1 Connect t...

Page 13: ...ttom of the fuel tank to the fuel pump must not exceed ten feet Keep the tank filled especially in the summer to reduce the accumulation of condensation CAUTION The furnace must be converted by a qual...

Page 14: ...n the oil supply line and all plugs nuts and fittingsonthepumpmustbeairtight Thisincludesthenutthat covers the pressure adjustment It is important that the hook up be done carefully and with a good fl...

Page 15: ...old the control lever for about one 1 minute after the pilot is lit Release the lever and it will spring back to the PILOT position Pilot should remain lit If it goes out repeat steps d through h abov...

Page 16: ...appliancebeforeservicing unit c Set the ON OFF switch to OFF d Honeywell pushinthegascontrolknobandturnclockwise to OFF Robertshaw push the gas control lever to OFF e Replace the furnace door SEQUENCE...

Page 17: ...ust be reset e When call for heat is satisfied the thermostat contacts open and the burner will stop Gas Gun Models M1 gas gun furnaces may be converted to oil gun in the field by using the proper con...

Page 18: ...hrough the observation door The same pilot orifice is used with both natural and L P gas b After this sequence the control module tests to see if flame is sensed If it has the furnace continues to hea...

Page 19: ...wn in Figure 32 Do not permit any electrodes to be grounded to any surface GAS CONVERSION This gas fired heating appliance was shipped from the factory for use with natural gas However the appliance c...

Page 20: ...o put the furnace into operation NOTE Thepilotflameisadjustablebyturningtheadjustment screw located on the gas valve with a small screwdriver See Figure 29 TROUBLESHOOTING STANDING PILOT MODELS Main B...

Page 21: ...s Closed a Check for polarity b Check ground c Check flue d Check combustion air e Check gas pressure f Check orifice g Check the position of ignitor a normal reading should be 40 75 ohms 24 Volts Sup...

Page 22: ...filters with a vacuum or with warm water and soap Reinstall when dry Also clean dust and lint around furnace and in the furnace vestibule Figure 35 3 Seasonal Service Information During extremely col...

Page 23: ...thasbeendesignedspecifically for manufactured housing applications and can best handle your home comfort needs Listed and ARI Certified all models are protected by the NORDYNE Air Conditioner Limited...

Page 24: ...ied with the appliance must be replaced use 105 C Thermoplastic type wire or its equivalent BLACK BLACK SUPPLIED BY INSTALLER BLUE WHITE MANUAL RESET VENT SWITCH 1 5 2 3 6 4 GAS VALVE FAN SWITCH HI LI...

Page 25: ...ce orange wire with red wire low speed NOTE To run at same speed in both heating and cooling mode remove wire from either terminal 4 or 6 on the relay then attach jumper to terminals 4 and 6 6 5 4 3 2...

Page 26: ...original wires as supplied with the appliance must be replaced use 105 C Thermoplastic type wire or its equivalent SUPPLIED BY INSTALLER C W G R COM BLUE 1 5 2 A C BLOWER RELAY 3 6 4 FAN SWITCH HI LIM...

Page 27: ...2 46 2 44 4 42 6 40 9 39 3 37 7 ORIFICE SIZE NAT GAS 21 23 23 24 25 26 27 28 28 29 M1M 077 ORIFICE SIZE LP 40 41 42 42 42 43 43 44 44 45 OUTPUT MBTUH 61 7 56 9 54 6 52 4 50 3 48 3 46 4 44 5 42 7 41 0...

Page 28: ...MO 707776C Replaces 707776B Specifications and illustrations subject to change without notice and without incurring obligations Printed in U S A 04 99 INSTALLER Please leave these installation instruc...

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